Use TaskScheduler instead of WorkerPool in polling_proxy_config_service.cc.

net/proxy/polling_proxy_config_service.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/proxy/polling_proxy_config_service.h"
 
 #include <memory>
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/observer_list.h"
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/lock.h"
+#include "base/task_scheduler/post_task.h"
 #include "base/threading/thread_task_runner_handle.h"
-#include "base/threading/worker_pool.h"
 #include "net/proxy/proxy_config.h"
 
 namespace net {
 
 // Reference-counted wrapper that does all the work (needs to be
 // reference-counted since we post tasks between threads; may outlive
 // the parent PollingProxyConfigService).
 class PollingProxyConfigService::Core
     : public base::RefCountedThreadSafe<PollingProxyConfigService::Core> {
  public:
@@ skipping 57 matching lines @@
       // Only allow one task to be outstanding at a time. If we get a poll
       // request while we are busy, we will defer it until the current poll
       // completes.
       poll_task_queued_ = true;
       return;
     }
 
     last_poll_time_ = base::TimeTicks::Now();
     poll_task_outstanding_ = true;
     poll_task_queued_ = false;
-    base::WorkerPool::PostTask(
-        FROM_HERE,
-        base::Bind(&Core::PollOnWorkerThread, this, get_config_func_),
-        true);
+    base::PostTaskWithTraits(
+        FROM_HERE, base::TaskTraits().MayBlock().WithShutdownBehavior(
+                       base::TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN),
+        base::Bind(&Core::PollAsync, this, get_config_func_));
   }
 
  private:
   friend class base::RefCountedThreadSafe<Core>;
   ~Core() {}
 
-  void PollOnWorkerThread(GetConfigFunction func) {
+  void PollAsync(GetConfigFunction func) {
     ProxyConfig config;
     func(&config);
 
     base::AutoLock l(lock_);
     if (origin_task_runner_.get()) {
       origin_task_runner_->PostTask(
           FROM_HERE, base::Bind(&Core::GetConfigCompleted, this, config));
     }
   }
 
@@ skipping 70 matching lines @@
 
 PollingProxyConfigService::~PollingProxyConfigService() {
   core_->Orphan();
 }
 
 void PollingProxyConfigService::CheckForChangesNow() {
   core_->CheckForChangesNow();
 }
 
 }  // namespace net